A helicopter may take_off from an airport.Logical formLearned from2 sentences. (Cell research) may take_off in a us-state.Logical formLearned from2 sentences. Some planes may take_off after a breach.Logical formLearned from2 sentences. An airplane may take_off at some a.m..Logical formLearned from2 sentences. Some citizens may take_off at some p.m..Logical formLearned from2 sentences. A helicopter may take_off from a carrier.Logical formLearned from2 sentences. An airplane may take_off at some p.m..Logical formLearned from2 sentences. A regional jet may crash after take_offing.Logical formLearned from2 sentences. A (fighter jet) may take_off at some p.m..Logical formLearned from2 sentences. Relatives of tourists may take_off to a world-city.Logical formLearned from2 sentences. Planes may take_off on water.Logical formLearned from2 sentences. A company may crash after take_offing from an airport.Logical formLearned from2 sentences. A male may be take_offed on some minutes.Logical formLearned from2 sentences. Plane may take_off for a world-city.Logical formLearned from2 sentences. A warplane may take_off from an (air force base).Logical formLearned from2 sentences.